Type-writing machine.



No.740,836. PATENTED 0016,1903

J. PBLBEL.

TYPE WRITING MACHINE.

APPLICATION IILBD JULY 6, 1903.

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No.740, 836. PATENTED 00T.6,1903.

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TYPE WRITING MACHINE.

- APPLICATION runn JULY 8. 1903.

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J. PELBEL. TYPEQWRITING MACHINE.

APPLICATION nun JULY 6. 190a.

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UNITED STATES i'atented October 6, 1903.

PATENT FFICE.

JACOB FELBEL, OFNEW YORK, N. Y., ASSIGNOR TO UNION TYPEWRITER COMPANY,OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 740,836, dated October6, 1903. Application filed July 6. 1903. Serial No. 164,385. (No model.)

To aZZ whom it may concern:

Be it known that I, JACOB FELBEL, a citi' zen of the United States, anda resident of the borough of Manhattan, city of New York,

in the county of New York and State of New York, have invented certainnew and useful Improvements in Type-Writing Machines, of which thefollowing is a specification.

My invention relates to type-writing ma- :o chines, and moreparticularly to means for preventing dust or grit from falling onto orgaining access to the bearings of the type bars or carriers. I

In front-strike type-writing machines wherein the platen isordinarilylocated above the type-bars, with its front face over thetype-bar hearings or pivots, dust or grit, usually composed of particlesof sand, rubber, and inked paper, falls from the paper when the operatoris making erasures and passes into or upon the bearings of the type barsor carriers and sometimes seriously affects the free and easy operationthereof.

The object of my present invention is to overcome this difliculty and.provide simple and efficient means for keeping the dust or grit awayfrom the bearings of the type bars or carriers and to so mount andarrange such means that it shall automatically move out of c the way ofthe type bars or carriers when they are actuated to print.

To the above and other ends, which will hereinafter appear, my inventionconsists in the features of construction, arrangements of 5 parts, andcombinations of devices to be here-' inafter described, and particularlypointed out in the appended claims.

In the accompanyingdrawings,wherein like reference characters indicatecorresponding parts in the various views, Figure 1 is a front to rearvertical sectional view of enough of a type-writing machine toillustrate my invention. Fig. 2 is a transverse sectional view of thesame, taken on the line so a; of Fig. 1 and 5 looking in the directionof the arrow in said figure. Fig. 3 is a detail skeleton view invertical section and side elevation of certain of the parts illustratedin Fig. 1, the view showing the disposition of the parts when a type-baris in the printing position. Fig. 4

is a fragmentary side elevation, partly in section, of a modified formof construction embodying my invention.

The frame 1 of the machine has a top plate 2, on which a carriage (notshown) of the usual or any desired construction travels from side toside of the machine, said carriage being provided with a platen 3, whichis diagrammatically illustrated. Key-levers 4, pivoted at 5 in the baseof the frame of the machine, are provided with finger-keys 6. Eachkey-lever has a sublever 7, pivoted thereto at S, and the lower endportion of each sublever is slotted at 9 for cooperation with a fixedful crum-bar 10, that extends beneath the keylevers from'side to side ofthe machine. The upper end of each sublever is pivotally connected at 11to one end of an'actuating-link 12, that has its other end pivoted at 13to a type bar or carrier 14, supported at its forward end on a segmentalpad 15. The various type-bars are segmentally arranged and are pivotedat 16 in a segment 17, each typebar being received within a bearing-slot18 in the segment. The segment is provided with forwardly-extending arms15, which support the pad 15. A depression of any finger-key will causethe associated type-bar to be moved upwardly and rearwardly to theprintingpoint z.

. Extending beneath the various key-levers is a universal bar 19,supported upon arms 20, that extend from a rock-shaft 21, which turns inbearings in the frame of the machine. Projecting rearwardly from therock-shaft 21 and centrally thereof is a crank-arm 22, the

rear end of which is connected to an up-' wardly-extending link 23, thathas its upper end connected at 24 to a crank-arm 25, which projectsforwardly from the rock-shaft 26 of a dog-rocker 27. This dog rockercarries feed-dogs 28, that cooperate with a suitable escapement-wheel orfeed-rack 29, (indicated in dotted lines in Fig. 1,) and the parts arerestored to the normal positions-by the usual dog-rocker spring 27 Bythese means a step-by-step feed movement of the carriage is effected ateach printing operation of a keylever. The crank-arm 22 is likewise connected to an upwardly-extending link 30, the upper end of which isattached to one arm of a bell-crank lever 31, pivotally supported at 32on a rearwardly-extending bracket-arm 33, secured at 34 to a fixedportion of the machine. The upwardly-extending arm of the bell-cranklever is pivotally connected to a forwardly-extending link 35, which atits front end is pivoted at 36 to an ear 37, that extends rearwardlyfrom a segmental dust shield or cover 38. This dust-shield is locatedabove the type-bar pivots and the bearing-slots 18 and lies between thefront face of the platen and said bearings. The ends of the segmentalstrip which constitutes the dust-shield are rigidly connected to andsupported by movable guide-rods 39, each of which is supported andguided by grooved rollers 40, that turn on screw-pivots 41 on thetype-bar segment. The forward end of each guide-rod 39 is connected toone end of a contractile spring 42, the other end of said spring beingconnected to a pin 43, which projects downwardly from the top plate ofthe machine. From this construction it will be seen that the springs 42tend to maintain the dustshield normally in the position illustrated inFig. 1 of the drawings, where it-will be seen that the pivotal hearingsof the type-bars and also the slots in which they work are fully coveredor protected from dust or grit falling from the face of the platen,which is in the same plane, or substantially the same plane, as thepivots of the type-bars. In this position of the dust-shield, however,it would be struck by the ascending type-bars if it were fixed insteadof movable, as itis, and the typebars would be prevented from printing;but owing to the described connections between the dust-shield and theuniversal bar said shield is retracted when a key-lever is depressed andsufficiently far to be entirely out of the way of the type-bat when itisin printing position, as illustrated at Fig. 3. The depression of anyfingerkey will, however, cause the universal bar to descend and theupright arm of the bell-crank lever 31 to swing rearwardly and pull the(lust-shield in the same direction and to the position indicated in Fig.This takes place automatically as the type-bar vibrates toward theprinting-point, the dust-shield moving in the general direction of themovement of the type-bar and out of the path thereof as it approachesthe printing position, so that the dust-shield will not interfere withthe printing movements of the type-bars. \Vhen pressure on thefinger-key is released and the type-bar moves back to its normalposition, the springs 42 will restore the dust-shield to its normalposition.

In Fig. 4 I have shown a modified form of construction embodying myinvention,wherein the dust-shield 38 is provided withrearwardly-extending ears 44, that are pivoted at 45 toupwardly-extending links 46, pivoted at their lower ends 47 tobracket-arms 48, that extend rearwardly from the segment 17*. Thebrackets 48, links 46, and rearwardlyextending ears 44 are located neareach end ing the shifting operations.

of the segmental dust-shield, and the links 46 constitute supportingmeans on which the dust-shield may be vibrated transversely'or fore andaft of the machine. The dust-shield has a centrally-locatedrearwardly-extending ear or projection 37, to which is pivoted at 36 a'link 35, whose rear end is pivoted to a bell-crank 31, actuated in themanner hereinbefore described with reference to Fig. 1. A pin or stop 46may be provided in front of each side link 46 to prevent the dust-shieldfrom dropping or tipping forward about the pivots 45 and 47. These pinsor stops may project rearwardly from the back of the typebar segment andat points Where they will not interfere with the rearward movement ofthe dust-shield. The dust-shield 38 may be provided withrestoring-springs similar to the springs 42, or the spring 27 of thedogrocker may be relied upon to restore the dust-shield to its normalposition in both constructions.

For the purpose of my present invention and from certain aspects thereofit is immaterial what construction of means is employed for actuatingthe type-bars, and itis likewise immaterial from certain aspects of myinvention whether the platen is shifted relatively to the type-bars forupper and lower case printing or whether the type-bars are shiftedrelatively to the platen, or, in fact, whether only one type is employedon each bar, in which case there would be no shift at all.

In the construction shown in Figs. 1, 2, and 3 of the drawings thesegment is represented as a shiftable one and the dust-shield is carriedby and shifts vertically with the segment when the latter is shifted forupper and lower case writing, the link 35 vibrating about its pivotalconnection with the upright arm of the bell-crank 31 in the same mannerthat the links 12 vibrate about their pivotal connections with thesublevers 7 and in such manner that there is no disturbance of thebell-crank 31 or of the sublevers 7 dur- The segment is provided withgrooved guideways 49, that receive antifriction balls 50, which ballslikewise cooperate with fixed grooved guideways 51, secured to theframing of the machine. The segment may be shifted by any suitablemeanssuch, for instance, as those employed in the Monarch machine.

In the construction represented in Fig. 4 the segment is not intended tobe shifted, but the platen may be shifted for upper and lower casewriting by any suitable means, as represented diagrammatically in saidfigure, although it will be observed that the segment is neverthelessequally adapted to be shifted therewith, if desired.

In both constructions the dust-shield is arranged to move bodily foreand aft of the machine in parallel planes, the links or levers 46 and 31permitting stich movement in the Fig. 4 construction, and the slides 39and lever 31 enabling this parallel movement to be obtained in the otherconstruction.

From the foregoing. description it will be understood that thedust-shield is independent of the type-bars, but that, nevertheless, itis operatively connected to the key-levers through the universal bar andthe connections from said bar to the shield, so that the shield receivesan automatic movement fore and aft of the machine, thus moving theshield out of the path of the type-bar as it approaches the printingposition and enabling the shield to again cover the type-bar bearings aswell as the pivotal joints 13 when the type-bar is restored to thenormal position. The dust-shield is easily accessible and theaccumulated dust or grit collecting thereon may be readily removed whendesired.

While I have shown and described two forms of construction embodying myinvention, it should be understood that various changes may be madewithout departing from the spirit of my invention.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a type-writing machine, the combination of a type-bar, adust-shield that covers the bearing of said type-bar, and means forautomatically moving said dust-shield.

2. In atype-writing machine, the combination of a type-bar, adust-shield that covers the bearing of said typebar and is independentthereof, and means for automatically effecting a movement of saiddust-shield when the type-bar is actuated. V

3. In a type-writing machine, the combination of apivoted type-bar, adust-shield that covers the pivot-bearing of the type-bar, and means formoving the shield out of the path of the type-bar when the latter movesto the printing position.

4. In a type-writing machine, the combination of a pivoted type-bar, akey therefor, a dust-shield that covers the pivot-bearing of thetype-bar, and means controlled by the movement of said key for effectinga movement of the shield. 5. In atype-writing machine, the combinationof a rearwardly-striking pivoted typebar, and a dust-shield which coversthe typebar pivot and receives a forward and backward movementcorresponding to the movement of the type-bar.

6. In a type-writing machine, the combination of a rearwardly-strikingpivoted typebar, and a dust-shield which covers the typebar pivot and isindependent of the type-bar, and which receives a forward and backwardmovement corresponding to the movement of the type-bar.

'7. In a type-writing machine, the combination of a pivoted typebar, akey-lever therefor, and a dust-shield that covers the pivotbearing ofthe type-bar and is operatively connected to said key-lever to be movedthereby.

universal bar, and a dust-shield that is connected to and is moved bysaid universalbar. 9. In a type-writing machine, thecombination of atype-bar, a key-lever therefor, a universal bar, a dust-shield andintermediate connections between said dust-shield and universal bar,whereby a movement of the keylever will eifect a movement of the shieldto remove it from the path of the type-bar as the bar moves to theprinting position.

10. In a type-writing machine, the combination of a series of pivotedtype-bars, a dustshield that covers the pivot-bearings of saidtype-bars, and means for moving said dustshield.

11.. In a front-strike type-writing machine, the combination of-a seriesof segmentallyarranged pivoted type bars, a dust-shield that extendsover and covers the pivot-bearings of said type-bars, and means forautomatically moving said dust-shield when any type-bar of the series isactuated.

12. In a type-writing machine, the combination of a series of pivotedtype-bars, a dustshield that is independent of the type-bars and coversthe pivot-bearings thereof, and means for automatically moving saiddustshield at each actuation of a type-bar.

13. In a type-Writing machine, the combination of a series of pivotedtype-bars, a series of keys therefor, a dust-shield that extends overand covers the pivot-bearings of said type-bars, and means controlled bythe keys for moving said shield out of the path of each of said seriesof type-bars as it approaches the printing position.

14. In a type-writing machine, the combination of a series of pivotedtype-bars, a se-:

ries of key-levers therefor, a universal bar, a dust-shield that extendsover and covers the pivot-bearings of said type-bars, and meanscontrolled by the universal bar for moving said shield outof the path ofeach of said series of type-bars as it approaches the printing position.

15. In a type-writing machine, the combination of a type-bar that ispivoted to swing in a bearing-slot, and an automatically-actuateddust-shield that covers the slot in which the type-bar moves.

16. In a type-writing machine, the combination of a slotted segment, aseries of typebars pivoted in the slots in said segment, and anautomatically-actuated dust-shield that covers said slots.

17. In a front-strike type-writing machine, the combination of a segmenthaving bearingslots therein, aseries of segmentally-arranged type-barspivoted in saidslots, a platen above said segment, a segmental dust-shield arranged above said slots, to cover them and the pivot bearingsof the typebars, and

8. In atype-writing machine, the c'ombination of a typebar, a key-levertherefor, a

means for automatically moving said dustthe combination of asegmenthaving bearingslots therein, a series of segmentally-arranged type-barspivoted in said slots, a platen above saidsegment, a segmentaldust-shield arranged above said slots to cover them and thepivot-bearings of the type-bars, and adapted to move fore and aft of themachine, fingerkeys for the type-bars, and means controlled by saidfinger-keys for automatically moving said dust-shield when a type-barisactuated, so thatthe shield will clear the path of a typebar in itsmovement to the printing position.

'19. In a front-strike type-writing machine, the combination of. asegment having bearingslots therein, a series of segmentally-arrangedtype-bars pivoted in the slots in said segment, a platen above saidsegment, key-levers, a universal bar, a dust-shield arranged above saidslots to cover them and the pivot-bearings of the type-bars, andintermediate connections between the universal bar and shield forautomatically moving said dustshield when a type-bar is actuated.

20. In a type-writing machine, the combination of a pivoted type-bar, akey-lever, a sublever, a dust-shield which is independent of thetype-bar and covers the pivot-bearing of the type-bar, and means forafiording a movement of the shield at each actuation of the type-bar.

21. In a type-writing machine, the combination ofa series of pivotedtype-bars, a series of key-levers, a series of sublevers, a dustshieldwhich is independent of the type-bars and covers the pivot-bearings ofthe typebars, and means for affording a movement of the shield at eachactuation of a type-bar.

22. In a front-strike type-writing machine, the combination of a seriesof rearwardlystriking pivoted type-bars, a series of sublevers, a seriesof connections between the sublevers and type-bars, a series ofkey-levers, a dust-shield independent of the type-bars, and means formoving the dust-shield out of the path of the type-bars when a key-leveris actuated.

23. In a type-writing machine, the combination of a type-bar, andadust-shield which covers the bearing for the bar and normally extendsinto the path of movement of the bar, but which is moved in the generaldirection of movement of the bar when it is actuated.

24. In a type-writing machine, the combination of a type-bar and adust-shield which is independent of the type-bar and covers the bearingthereof and normally extends into the path of movement of the bar, butwhich is moved in the general direction of movement of the bar when itis actuated.

25. In a type-writing machine, the combination of a series of pivotedtype-bars, a dustshield that is mounted to move in the general directionof movement of the bars and which covers the pivot-bearings of thetypebars when they are at rest, and means for moving the dust-shield outof the way of the type-bars when they are moving to print.

26. In afront-strike type-writing machine, the combination of a seriesof segmentallyarranged pivoted type bars, key actuated means foroperating said type-bars, a segmental dust-shield that extends over andcovers the pivot-bearings of the type-bars, a universal bar that isactuated at each operation of a type-bar, and connections between thedust-shield and universal bar to efiect a movement of the former whenthe universal bar is moved.

27. In a front-strike type-writing machine, the combination of a seriesof segmentallyarranged pivoted type-bars, key-levers therefor, subleverscontrolled by said key-levers, links connecting said sublevers andtype-bars, a universal bar controlled by the key-levers, a dust-shieldcovering thepivot-bearings of the type-bars, and intermediateconnections between the universal bar and dust-shield, whereby amovement of a key-lever will antomatically move the dust-shield out ofthe path of its connected type bar before it reaches the printingposition.

28. In a front-strike type-writing machine,thecombinationofaprintinginstrumentality, ashield to ooverthebearingthereof,and means for moving the shield out of the way when theprinting instrumentality is moved to print.

29. In a front-strike type-writing machine, the combination with aplaten and a series of pivoted type-carriers, of a key-actuateddustshield arranged over the pivotal portions of the type-carriers.

30. In a type-writing machine, the combination of a segment shiftable upand down, a series of type-bars pivotally mounted in said segment, asegmental dust shield over the pivotal portions of said type-bars andshiftable up and down with said type-bar segment, and means for movingsaid dust-shield transversely of said segment when the type-bars areactuated.

31. In a type-writing machine, the combination of a segment shiftable upand down, a series of type-bars mounted in said segment, a segmentaldust-shield connected to said type-bar segment so as to shift up anddown therewith, type-bar-actuating means, and means connected therewithand with said dust-shield for moving the same transversely when thetype-bars are actuated.

32. In a type-writing machine, the combination of a segment shiftable upand down, a series of type-bars pivotally mounted in said segment,key-actuated means for operating said type-bars, a segmental dust-shieldconnected to and shiftable up and down with said type-bar segment, andmeans connected with said type-bar-actuating mechanism for moving saiddust-shield transversely when the type-bars are actuated, said meansincluding a pivoted link whereby the dust-shield may be shifted up anddown with the typebar segment without disturbing the remainder of theconnections between said shield and said type-bar-actuating means.

33. In a type-writing machine, the combination of a segment shiftable upand down, a series of type-bars pivotally mounted in said segment,key-actuated means for operating said type-bars, a segmental dust-shieldshiftable up and down with said type-bar segment, and means for movingsaid shield transversely or fore and aft of the machine, including apivoted link which is adapted to swing up and down when the type-barsegment and the dust-shield are shifted up and down.

34. In a type-writing machine, the combination of a segment shiftable upand down, a series of type-bars pivotally mounted in said segment,key-actuated means for operating said type-bars, a segmental dust-shieldsupported at'or near its free ends on said segment and shiftable up anddown therewith, a pivoted link connected to said dust-shield at or aboutits middle, and means for actuating said link so as to move thedust-shield transversely.

35. In a type-writing machine, the combination of a segment shiftable upand down, a series of type-bars pivotally mounted in said segment,key-actuated means for operating said type-bars, a segmental dust-shieldsupported at or near its free ends on said segment and shiftable up anddown therewith, a pivoted link connected to said dust-shield, a

bell-crank connected to said link, and means connected with thetype-bar-actnatin g means for operating said hell-crank and link andcausing the dust-shield to move transversely of itself and of thetype-bar segment when 5 the type-bars are actuated to print.

36. In a type-writing machine, the combination of a type-bar segment, aseries of typebars pivotally mounted therein, key-actuated means foroperating said type-bars, a segmental dust-shield arranged over thepivotal portions of the type-bars, and means for enabling thedust-shield to be retracted in parallel planes out of the way of thetype-bars when they are swung to print.

37. In a type-writing machine, the combination of a vertically-arrangedsegment, typebars pivotally mounted therein, and a vertically-arrangedsegmental dust-shield movable transversely in parallel planes during thevibrations of the type-bars.

Signed at the borough of Manhattan, city of New York, in the county ofNew York and State of New York, this 3d day of July, A. D. 1903.

v JACOB FELBEL. Witnesses:

K; V. DONOVAN, E. M.VWELLS.

